I want to dedicate this song to Heath, because it's beautiful and the lyrics are perfect for him.It's called Saturn and it's performed by a group called "Sleeping at Last". If there was ever a more appropriate name...

"Saturn"

You taught me the courage of stars before you left.How light carries on endlessly, even after death.With shortness of breath, you explained the infinite.How rare and beautiful it is to even exist.

I couldn’t help but askFor you to say it all again.I tried to write it downBut I could never find a pen.I’d give anything to hearYou say it one more time,That the universe was madeJust to be seen by my eyes.

I couldn’t help but askFor you to say it all again.I tried to write it downBut I could never find a pen.I’d give anything to hearYou say it one more time,That the universe was madeJust to be seen by my eyes.

With shortness of breath, I’ll explain the infiniteHow rare and beautiful it truly is that we exist.

Christopher Nolan reflects on Heath Ledger’s Joker in The Dark Knight on the 10th anniversary of Heath’s death:

“…He would sort of give me hints about what he was going to do. We would talk about it a bit. And I would try and be an audience for him and sort of engage with him, what he was doing. But a lot of it was about unpredictability, and I think he wanted to play his cards close to the chest. He would very gradually reveal to me the ‘voice’ and the way he was going to do things – but not in one go, like, ‘Here’s the Joker.’

“We watched him sort of develop it, with the wardrobe and the makeup, and I kind of got to be a part of that creative process, which was great fun, but on-set, there were always moments like that clapping or things he would do with his voice. His voice was so unpredictable. He created this bizarre pitch. I’ve seen a lot of people try and imitate it since. But we never quite knew if he was going to go high or if he was going to go low. You never knew what that guy was going to do, and that’s what was terrifying about him.”

“I took huge pride in having been in any way involved with this great performer and his legacy. He was an extraordinary person and an extraordinary actor. And for him to be recognized in that way, I think, was very meaningful for his family and meaningful, I think, for film history. What he contributed, and he contributed in many different ways to film history, but that it be marked in that way, I was very proud to be a part of it.”